Measurement E8M3
| Experiment: | E89-038 CLAS experiment | |
|---|---|---|
| Year: | 1999 | |
| Spokespersons: | V. Burkert, R. Minehart | |
| Reaction: | ep → π+n | |
| Polarization: | none | |
| Quantity: | dσ/dΩ | |
| Q2: | 0.25 — 0.35 GeV2 | |
| W: | 1.14 — 1.16 GeV | |
| Ebeam: | 1.515 GeV | |
| Publication: |
under preparation //
|
|
| θπ, [deg] | φπ, [deg] | dσ/dΩ, [μb/sr] | uncertainty |
|---|---|---|---|
| 7.5 | 15.0 | 4.112 | 0.9327 |
| 7.5 | 45.0 | 6.798 | 1.43 |
| 7.5 | 75.0 | 9.384 | 1.632 |
| 7.5 | 105.0 | 9.974 | 1.457 |
| 7.5 | 135.0 | 7.244 | 1.194 |
| 7.5 | 165.0 | 7.413 | 1.092 |
| 7.5 | 195.0 | 11.25 | 1.67 |
| 7.5 | 225.0 | 12.84 | 2.807 |
| 7.5 | 255.0 | 6.048 | 0.9879 |
| 7.5 | 285.0 | 7.484 | 1.259 |
| 7.5 | 315.0 | 7.576 | 1.359 |
| 7.5 | 345.0 | 9.094 | 1.983 |
| 22.5 | 15.0 | 4.2 | 0.6164 |
| 22.5 | 45.0 | 4.806 | 0.5597 |
| 22.5 | 75.0 | 6.808 | 0.6961 |
| 22.5 | 105.0 | 6.531 | 0.6116 |
| 22.5 | 135.0 | 9.056 | 0.7452 |
| 22.5 | 165.0 | 9.206 | 0.7681 |
| 22.5 | 195.0 | 8.144 | 0.6801 |
| 22.5 | 225.0 | 7.026 | 0.6057 |
| 22.5 | 255.0 | 8.554 | 0.7308 |
| 22.5 | 285.0 | 6.064 | 0.7126 |
| 22.5 | 315.0 | 4.295 | 0.5401 |
| 22.5 | 345.0 | 5.234 | 0.6728 |
| 37.5 | 15.0 | 2.675 | 0.7228 |
| 37.5 | 45.0 | 6.646 | 1.998 |
| 37.5 | 75.0 | 9.373 | 2.43 |
| 37.5 | 105.0 | 10.39 | 1.787 |
| 37.5 | 135.0 | 9.103 | 0.6215 |
| 37.5 | 165.0 | 7.415 | 0.5332 |
| 37.5 | 195.0 | 7.909 | 0.5687 |
| 37.5 | 225.0 | 9.721 | 0.6867 |
| 37.5 | 255.0 | 8.92 | 1.794 |
| 37.5 | 285.0 | 6.312 | 2.592 |
| 37.5 | 315.0 | 5.132 | 2.594 |
| 37.5 | 345.0 | 1.884 | 0.3626 |
| 52.5 | 45.0 | 2.813 | 0.3613 |
| 52.5 | 75.0 | 6.713 | 0.5351 |
| 52.5 | 105.0 | 9.131 | 1.637 |
| 52.5 | 135.0 | 10.11 | 0.9464 |
| 52.5 | 165.0 | 8.306 | 0.5819 |
| 52.5 | 195.0 | 9.737 | 0.645 |
| 52.5 | 225.0 | 10.6 | 1.246 |
| 52.5 | 255.0 | 10.0 | 2.114 |
| 52.5 | 285.0 | 6.471 | 0.6358 |
| 52.5 | 315.0 | 4.466 | 0.7014 |
| 67.5 | 45.0 | 4.444 | 0.4028 |
| 67.5 | 75.0 | 8.068 | 0.476 |
| 67.5 | 105.0 | 11.11 | 0.8458 |
| 67.5 | 135.0 | 10.24 | 1.643 |
| 67.5 | 165.0 | 9.031 | 0.4663 |
| 67.5 | 195.0 | 9.399 | 0.4786 |
| 67.5 | 225.0 | 9.938 | 1.29 |
| 67.5 | 255.0 | 10.28 | 0.6792 |
| 67.5 | 285.0 | 8.717 | 0.4801 |
| 67.5 | 315.0 | 5.229 | 0.3826 |
| 82.5 | 45.0 | 6.142 | 0.8701 |
| 82.5 | 75.0 | 9.328 | 0.5365 |
| 82.5 | 105.0 | 11.57 | 0.6193 |
| 82.5 | 135.0 | 9.582 | 0.8861 |
| 82.5 | 165.0 | 8.56 | 0.4965 |
| 82.5 | 195.0 | 7.994 | 0.4914 |
| 82.5 | 225.0 | 9.656 | 1.098 |
| 82.5 | 255.0 | 10.71 | 0.5333 |
| 82.5 | 285.0 | 9.9 | 0.5205 |
| 82.5 | 315.0 | 5.342 | 0.7639 |
| 97.5 | 45.0 | 5.452 | 1.023 |
| 97.5 | 75.0 | 8.715 | 0.6103 |
| 97.5 | 105.0 | 11.07 | 0.5487 |
| 97.5 | 135.0 | 10.4 | 1.956 |
| 97.5 | 165.0 | 6.106 | 0.4279 |
| 97.5 | 195.0 | 7.366 | 0.5106 |
| 97.5 | 225.0 | 9.607 | 1.036 |
| 97.5 | 255.0 | 10.71 | 0.5099 |
| 97.5 | 285.0 | 10.2 | 0.59 |
| 97.5 | 315.0 | 6.717 | 1.523 |
| 112.5 | 15.0 | 4.116 | 1.435 |
| 112.5 | 45.0 | 6.707 | 0.599 |
| 112.5 | 75.0 | 9.028 | 1.053 |
| 112.5 | 105.0 | 10.71 | 0.606 |
| 112.5 | 165.0 | 7.596 | 1.62 |
| 112.5 | 195.0 | 6.198 | 0.6325 |
| 112.5 | 225.0 | 7.947 | 0.6488 |
| 112.5 | 255.0 | 10.54 | 0.5459 |
| 112.5 | 285.0 | 9.42 | 1.194 |
| 112.5 | 315.0 | 7.333 | 0.8014 |
| 127.5 | 15.0 | 3.952 | 0.8273 |
| 127.5 | 45.0 | 7.965 | 0.7655 |
| 127.5 | 75.0 | 11.53 | 2.244 |
| 127.5 | 105.0 | 9.566 | 0.8943 |
| 127.5 | 135.0 | 10.55 | 1.839 |
| 127.5 | 225.0 | 8.477 | 1.021 |
| 127.5 | 255.0 | 12.88 | 1.163 |
| 127.5 | 285.0 | 8.695 | 1.032 |
| 127.5 | 315.0 | 7.974 | 0.7073 |
| 127.5 | 345.0 | 2.985 | 0.6661 |
| 142.5 | 15.0 | 7.099 | 2.229 |
| 142.5 | 45.0 | 9.892 | 1.513 |
| 142.5 | 75.0 | 11.77 | 2.109 |
| 142.5 | 285.0 | 13.31 | 2.183 |
| 142.5 | 315.0 | 11.17 | 1.897 |
| 157.5 | 15.0 | 5.1 | 1.793 |
Measurement comment:
Experiment comment: